Researched by Helena DeMaria-Williams
Formula IngredientHumectant, SolventPropanediol
INCI: Propanediol
Propanediol (1,3-propanediol) is a naturally derived diol produced sustainably from corn sugar, and is Ecocert approved. It functions primarily as a humectant and solvent, drawing moisture into the skin while also improving the spreadability and texture of formulations. It is widely regarded as a gentler, more skin-compatible alternative to propylene glycol.
Category
Humectant, Solvent
Irritation Risk
Low
Skin Types
all skin types, sensitive skin, oily, acne-prone, dry, combination
What does this do in a formula?
hydration, improved product texture, preservative boosting, skin conditioning, solvent for actives
Is Propanediol safe? Key considerations
Can Propanediol cause irritation?
Low RiskPropanediol is well-tolerated across skin types and is considered one of the least irritating glycol alternatives. Unlike propylene glycol, it has a low sensitisation potential and is suitable for sensitive skin. No Annex II or III restrictions under EU CosIng.
Does Propanediol increase sun sensitivity?
No RiskPropanediol does not increase photosensitivity. No SPF precautions are required when using products containing this ingredient.
Is Propanediol safe during pregnancy?
SafePropanediol is considered safe for use during pregnancy at standard cosmetic concentrations. It is not systemically absorbed to a clinically significant degree through intact skin, and no reproductive or developmental concerns have been identified in available safety data.
How does Propanediol work?
Propanediol (1,3-propanediol) is a naturally derived diol produced sustainably from corn sugar, and is Ecocert approved. It functions primarily as a humectant and solvent, drawing moisture into the skin while also improving the spreadability and texture of formulations. It is widely regarded as a gentler, more skin-compatible alternative to propylene glycol.
Individuals with known allergy to corn-derived ingredients (rare) should review the considerations above before use.
Which products contain Propanediol?
Shop products that contain Propanediol
Bio-Active Ceramide Moisturiser
Starter Retinol Serum
Exosome Glow Serum
Caffeine Eye Cream
Omega Water Cream
Hyaluronic Acid Serum
Dewy Sunscreen SPF 30
Hyaluronic Acid Serum
Supersize Salicylic Acid Cleanser
360° Skin Clearing Serum
Supersize Omega Water Cream
Ectoin Hydro-Barrier Serum
Milk Cleanser
10% Niacinamide Serum
Salicylic Acid Cleanser
Supersize Hyaluronic Acid Serum
Collagen Peptide Serum
Biome Balancing Moisturiser
Retinol Serum
Glycolic Acid Toner
Retinol Eye Cream
Polyglutamic Acid Serum
Beta Hydroxy Acid (BHA) Serum
PHA Toner
10% Azelaic Acid Serum for Redness Relief
C-50 Blemish Night Treatment
Gentle Clear Triple Action Blemish Serum
Hyaluronic Acid 2% + B5 (with Ceramides)
Glycolic Acid 7% Exfoliating Toner
Caffeine Solution 5% + EGCG Eye Serum
Natural Moisturizing Factors + HA
Argireline Solution 10%
UV Filters SPF 45 Serum
Natural Moisturizing Factors + PhytoCeramides
Multi-Peptide Eye Serum
Natural Moisturizing Factors + Beta Glucan
AHA 30% + BHA 2% Peeling Solution
Alpha Arbutin 2% + HA
Granactive Retinoid 2% Emulsion
Sulfur 10% Powder-to-Cream Concentrate
Soothing & Barrier Support Serum
Natural Moisturizing Factors + Inulin Body Lotion
Ascorbyl Glucoside Solution 12%
Marine Hyaluronics
Niacinamide 5% Face and Body Emulsion
Amino Acids + B5
Balancing & Clarifying Serum
Multi-Antioxidant Radiance Serum
Lactic Acid 5% + HA
Salicylic Acid 0.5% Body Serum
Multi-Active Delivery Essence
Lactic Acid 10% + HA
Resveratrol 3% + Ferulic Acid 3%
Pycnogenol 5%
Aloe 2% + NAG 2% Solution
EUK 134 0.1%
Mandelic Acid 10% + HA
Hyaluronic Acid 2% + B5 (Original Formulation)
